YASKAWA E-7S SERVOPACK SGD7S Product Manual page 529

15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.300:
Regeneration
Error
15-18
Possible Cause
Pn600 (Regenerative
Resistor Capacity) is
not set to 0 and an
External Regenerative
Check to see if an
Resistor is not con-
External Regenerative
nected to one of the
Resistor is connected
following SERVO-
and check the setting of
PACKs:
Pn600.
SGD7S-R70A, -R90A,
-1R6A, -2R8A, -R70F,
-R90F, -2R1F, or
-2R8F.
A Regenerative Resis- Check to see if an
tor is not connected External Regenerative
to one of the following Resistor or a Regenera-
SERVOPACKs: tive Resistor Unit is con-
SGD7S-470A, -550A, nected and check the
-590A, or -780A. setting of Pn600.
The jumper between
the regenerative resis-
tor terminals (B2 and
B3) was removed Check to see if the
from one of the fol- jumper is connected
lowing between power supply
SERVOPACKs: terminals B2 and B3.
SGD7S-3R8A, -5R5A,
-7R6A, -120A, -180A,
-200A, or -330A.
The External Regener-
ative Resistor is not Check the wiring of the
wired correctly, or was External Regenerative
removed or discon- Resistor.
nected.
A failure occurred in
–
the SERVOPACK.
Confirmation
Connect an External
Regenerative Resistor, or
set Pn600 (Regenerative
Resistor Capacity) to 0
(setting unit: ×10 W) if no
Regenerative Resistor is
required.
Connect an External
Regenerative Resistor and
set Pn600 to an appropri-
ate value, or connect a
Regenerative Resistor
Unit and set Pn600 to 0.
Correctly connect a
jumper.
Correct the wiring of the
External Regenerative
Resistor.
While the main circuit
power supply is OFF, turn
the control power supply
to the SERVOPACK OFF
and ON again. If an alarm
still occurs, the SERVO-
PACK may be faulty.
Replace the SERVO-
PACK.
Continued from previous page.
Correction Reference
page 5-53
page 4-22
–
Continued on next page.